Make Nix builds work

1 files changed, 26 insertions, 0 deletions

diff --git a/vendor/github.com/klauspost/cpuid/v2/cpuid_arm64.s b/vendor/github.com/klauspost/cpuid/v2/cpuid_arm64.s
new file mode 100644
index 0000000..b31d6ae
--- /dev/null
+++ b/vendor/github.com/klauspost/cpuid/v2/cpuid_arm64.s
@@ -0,0 +1,26 @@
+// Copyright (c) 2015 Klaus Post, released under MIT License. See LICENSE file.
+
+//+build arm64,!gccgo,!noasm,!appengine
+
+// See https://www.kernel.org/doc/Documentation/arm64/cpu-feature-registers.txt
+
+// func getMidr
+TEXT ·getMidr(SB), 7, $0
+        WORD $0xd5380000    // mrs x0, midr_el1         /* Main ID Register */
+        MOVD R0, midr+0(FP)
+        RET
+
+// func getProcFeatures
+TEXT ·getProcFeatures(SB), 7, $0
+        WORD $0xd5380400            // mrs x0, id_aa64pfr0_el1  /* Processor Feature Register 0 */
+        MOVD R0, procFeatures+0(FP)
+        RET
+
+// func getInstAttributes
+TEXT ·getInstAttributes(SB), 7, $0
+        WORD $0xd5380600            // mrs x0, id_aa64isar0_el1 /* Instruction Set Attribute Register 0 */
+        WORD $0xd5380621            // mrs x1, id_aa64isar1_el1 /* Instruction Set Attribute Register 1 */
+        MOVD R0, instAttrReg0+0(FP)
+        MOVD R1, instAttrReg1+8(FP)
+        RET
+